19828890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4157}}^1$

素因数の和:4223

約数の個数: 48

約数和(自身を含む): 52540488

約数和(自身を除く): 32711598

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 53, 90, 106, 159, 265, 318, 477, 530, 795, 954, 1590, 2385, 4157, 4770, 8314, 12471, 20785, 24942, 37413, 41570, 62355, 74826, 124710, 187065, 220321, 374130, 440642, 660963, 1101605, 1321926, 1982889, 2203210, 3304815, 3965778, 6609630, 9914445, 19828890]

約数ペア:

[(1, 19828890), (2, 9914445), (3, 6609630), (5, 3965778), (6, 3304815), (9, 2203210), (10, 1982889), (15, 1321926), (18, 1101605), (30, 660963), (45, 440642), (53, 374130), (90, 220321), (106, 187065), (159, 124710), (265, 74826), (318, 62355), (477, 41570), (530, 37413), (795, 24942), (954, 20785), (1590, 12471), (2385, 8314), (4157, 4770)]